INFO: task kworker/u8:2:24 blocked for more than 427 seconds.
      Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:2    state:D stack:0     pid:24    tgid:24    ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
[<ffffffff8624d1e2>] context_switch kernel/sched/core.c:5377 [inline]
[<ffffffff8624d1e2>] __schedule+0xe4c/0x3d70 kernel/sched/core.c:6764
[<ffffffff862501ca>] __schedule_loop kernel/sched/core.c:6841 [inline]
[<ffffffff862501ca>] schedule+0xc4/0x324 kernel/sched/core.c:6856
[<ffffffff86250b14>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6913
[<ffffffff86254610>] __mutex_lock_common kernel/locking/mutex.c:662 [inline]
[<ffffffff86254610>] __mutex_lock+0x9b2/0x1230 kernel/locking/mutex.c:730
[<ffffffff86254ea2>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:782
[<ffffffff84fd97e0>] rtnl_lock+0x22/0x2a net/core/rtnetlink.c:79
[<ffffffff85a06fbc>] rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
[<ffffffff85a06fbc>] addrconf_dad_work+0x110/0x13ec net/ipv6/addrconf.c:4190
[<ffffffff801b3668>] process_one_work+0x96a/0x1f3a kernel/workqueue.c:3236